Welcome :: Homework Help and Answers :: Mathskey.com

Recent Visits

    
Welcome to Mathskey.com Question & Answers Community. Ask any math/science homework question and receive answers from other members of the community.

13,435 questions

17,804 answers

1,438 comments

777,544 users

write the expression in the standard form a + bi.

0 votes

write the expression in the standard form a + bi.

asked Jan 29, 2015 in PRECALCULUS by anonymous

1 Answer

0 votes

Step 1 :

De Moivre's Theorem :

If image is a complex number, then

image where image is a positive integer.

Step 2 :

The expression is image

Apply De Moivre's theorem.

image

Hence,

image

Solution :

image

answered Jan 29, 2015 by Thomas Apprentice

Related questions

asked Sep 20, 2014 in PRECALCULUS by anonymous
asked Jul 7, 2016 in PRECALCULUS by anonymous
...